GROUP ONE TRADING LLC

CIK
932540
City
CHICAGO
State / Country
IL

Top Portfolio Positions

1,818 positions · $2,513,815,969 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio
MU
Micron Technology Inc
Technology
155,688 $52,597,633 2.09%
TSM
Taiwan Semiconductor Manufacturing Co Ltd
Technology
138,053 $46,655,011 1.86%
AG
First Majestic Silver Corp
Basic Materials
1,934,908 $41,561,823 1.65%
MAR
Marriott International Inc /Md/
Consumer Cyclical
105,864 $34,624,938 1.38%
PBR
Petrobras - Petroleo Brasileiro SA
Energy
1,581,009 $32,805,936 1.31%
KKR
KKR & Co. Inc.
Financial Services
334,894 $30,977,695 1.23%
CYTK
Cytokinetics Inc
Healthcare
363,997 $23,991,042 0.95%
CDE
Coeur Mining, Inc.
Basic Materials
1,220,454 $22,907,921 0.91%
INTC
Intel Corp
Technology
469,490 $20,718,593 0.82%
VST
Vistra Corp.
Utilities
133,945 $20,135,951 0.80%

Portfolio Trend

31 quarters · across all stocks

Holdings in KOS

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Shares Held

Position Value (USD)

13 of 13 shown
Report Date Value (USD) Shares
2025-12-31 $804,915 884,523
2025-09-30 $1,622,037 977,131
2025-06-30 $1,592,252 925,728
2025-03-31 $867,726 380,582
2024-12-31 $1,129,191 330,173
2024-09-30 $477,933 118,594
2023-12-31 $92,738 13,821
2022-12-31 $144,543 22,727
2021-12-31 $153,921 44,486
2021-09-30 $82,270 27,794
2021-06-30 $240,428 69,488
2021-03-31 $59,548 19,397
2020-06-30 $10,217 6,155